机械5

摘要 随着机电一体化、自动化、人工智能化的大大发展，机械加工的应用也是千变万化，工艺制造的技术也随之改变，本次的课题就是针对指定的某零件对其进行工艺的设计，通过对基本的零件的工艺设计来熟悉某个零件从毛坯 制造到最终完成所需要经历的过程，在此熟悉机械加工工艺制造学的基本知识，并也熟悉目前机械制造中常见的数控加工等应用。 本次对零件进行零件图上的分析，包括各表面的加工精度要求，确定好基本的零件的表面精度后，我们来分析具体该如何加工这些表面，然后确定好基本的加工尺寸还有毛坯的余量尺寸等，绘制出零件图和毛坯图。确定合理 的工艺流程后，制定工艺过程卡和工序卡，并进行每个工序的加工参数的计算。然后选择其中的两个主要的工序作为本次的工装夹具的设计任务，从零件的定位、夹紧来开始分析，确定好夹具的基本方案，绘制夹具的装配图和夹具的零件图，并进行切削力和夹紧力的计算等，最后完成设计说明书。 关键词：工艺、工序、切削用量、夹紧、定位、误差。 ABSTRCT With the great developme
nt of mechatro
nics, automatio
n a
nd artificial i
ntellige
nce, the applicatio
n of mecha
nical processi
ng is also cha
ngi
ng rapidly, a
nd the tech
nology of process ma
nufacturi
ng is also cha
ngi
ng. This topic is to desig
n the process for a specified part. Through the process desig
n of basic parts, we ca
n get familiar with the process desig
n of a part from the bla
nk.The process of ma
nufacturi
ng to the fi
nal completio
n
needs to go through, i
n this familiar with the basic k
nowledge of mecha
nical processi
ng tech
nology ma
nufacturi
ng, a
nd familiar with the curre
nt machi
nery ma
nufacturi
ng commo
n CNC processi
ng applicatio
ns. This time, the parts are a
nalyzed o
n the part drawi
ngs, i
ncludi
ng the processi
ng accuracy requireme
nts of each surface, after determi
ni
ng the basic surface accuracy of the parts, we will a
nalyze how to process these surfaces, a
nd the
n determi
ne the basic processi
ng size a
nd the spare size of the bla
nk, a
nd draw the part drawi
ngs a
nd the bla
nk drawi
ngs. Determi
ne reaso
nable, After the process flow, the process card a
nd process card are formulated, a
nd the processi
ng parameters of each process are calculated. The
n two mai
n processes are selected as the desig
n task of the fixture. Starti
ng from the positio
ni
ng a
nd clampi
ng of the parts, the basic scheme of the fixture is determi
ned, the assembly drawi
ng of the fixture a
nd the part drawi
ng of the fixture are draw
n, a
nd the calculatio
n of the cutti
ng force a
nd clampi
ng force is carried out. Fi
nally, the desig
n i
nstructio
ns are completed.. Keywords: The craft, the worki
ng procedure, the cutti
ng specificatio
ns, clamp, the localizatio
n, the error 目录 摘要2 ABSTRCT 3 序言1 一零件的分析2 1.1零件的作用2 1.2零件的工艺分析2 1.3生产纲领3 二.工艺规程设计4 2.1确定毛坯的制造形式4 2.2基面的选择4 2.3制定工艺路线5 2.4机械加工余量、工序尺寸及毛坯尺寸的确定7 2.5确定切削用量及基本工时7 三夹具设计16 3.1问题的提出16 3.2定位基准的选择16 3.3切削力和夹紧力的计算17 3.4定位误差分析17 3.5夹具设计及操作的简要说明18 四铣夹具设计19 4.1问题的提出19 4.2定位基准的选择19 4.3切削力及夹紧力计算19 4.4定位误差分析21 4.5夹具设计及操作简要说明22 总结23 致谢24 参考文献25